Brand Name: www.focal-deal.com Model Number: F-BH-051 Style: In-Ear Communication: Wireless Place of Origin: Guangdong China (Mainland) Warranty: 1 year Payment Methods: Western Union,Moneygram,Paypal,Escrow Packaging & Delivery Packaging Detail: Retail Package Delivery Detail: In 1-3 workdays Specifications 1.Fashion Design 2.Fast Delivery 3.Tested before Shipping 4.Factory Price,no MOQ 5.Nice Sale Service High Quality Fashion Style Mini Portable Bluetooth Headset Headphone Specifications Compatible withUniversalTypeBluetooth HeadsetsPart TypeDIY ToolsFeaturesOtherColorBlack, Purple, Assorted ColorsDimensions (cm)2.7×2.5×1.5Weight (kg)0.006
Brand Name: OEM Model Number: BSH557 Style: Headband Communication: Wireless Connectors: USB Use: Mobile Phone Function: Bluetooth Place of Origin: Guangdong China (Mainland) color: black Packaging & Delivery Packaging Detail: - Box: standard or customization - User Manual x1 - USB Cable x 1 - Charger: car charger or Travel charger Delivery Detail: 3-7 working days Specifications 1)Hi-fi visual 3D stereo bluetooth headphone 2)novel design 3) clear communication 4) long communication distance Product name: Hi-Fi Bluetooth Stereo HeadsetModel NO.: BSH557 1.Product introductionBSH557 is a Hi-fi visual 3D stereo bluetooth headphone for all markets,novel design, clear communication, long communication distance, auto noice reduction, comfortable to ware and foldabl
Specifications *Bluetooth Headset With Microphone *Frequency:2.4GHz-2.48GHz *Music time: Bluetooth 10h MP3 8h *Standby time: Up to 26h Newest cheap stereo bluetooth headset *Frequency:2.4GHz-2.48GHz*Music time: Bluetooth 10h MP3 8h*Standby time: Up to 26h Newest Bluetooth Headset With Microphone DT120s Specificaions:*Bluetooth Headset For Both Ears *Frequency:2.4GHz-2.48GHz*Music time: Bluetooth 10h MP3 8h*Standby time: Up to 26Technical parameter and specification:Frequency range:2.4GHz-2.48GHzTransmission power: Class 2Operating voltage: 3.6vOperating current: Bluetooth≤25mA Mp3≤45mAStandby current:≤0.5mATramission distance: Max.20M(open space)\Headset size: 160*125*70mmMusic time: Bluetooth 10Hours MP3 8HoursCharging time: 2-3 HoursTalking time: Up to 12 HoursStandby time: Up to 260 HoursGross Weight: 0.5KGPackage Size:18*17*7cm
Specifications 1.NEW bluetooth stereo headset 2.Bluetooth 2.1+EDR 3.FCC,CE,BQB,RoHS 4.Available range:10m 5.A2DP,AVRCP Specifications of bluetooth: Bluetooth VersionV2.1 EDRTypeStereo headphone with internal micOperation Distance10mRange of Frequency2.4 to 2.4835GHz ISM bandSensitivity85dBPC InterfaceUSB2.0Music FormatMP3 at WMAStandby timeup to 200hoursMusic Playing Time10 hoursNormal Charging TimeWithin 3 hoursBattery3.7V 300mA Rechargeable Li-PolymerPowerImput AC 100-240V, output DC 5V 300mARF Output Power-6dBm to 4dBmOperating temperature-10’C to +55’CSupportsBluetooth Headset, Handsfree,HFP,HSP, A2DP and AVRCP Profiles Features of bluetooth: 1,Top Quality Blutooth Headset with Microphone.2.High Defition bluetooth headset with impressive bass sound.3.Can be easily connected to iphone,ipad,PC,cellphones e
Model Number: R-15 Style: Headband Communication: Wireless Connectors: USB Use: Portable Media Player Function: Bluetooth Place of Origin: Guangdong China (Mainland) Color: black/white/red *Bluetooth version: 2.1+EDR, Class II Bluetooth Profiles: HSP, HFP, A2DP and AVRCP Talk time&music playing time: up to 10hrs Standby time: up to 300 hrs Charging time: less than 3 hrs Battery capacity: 120 mAh Chipset: CSR Operation distance: 10 meters Weight: 106g Packaging & Delivery Packaging Detail: *Pcs/Ctn:20pcs/ctn *Ctn size:44*38*38cm *GW/NW:7.5kg/6.5kg *Q'ty/20':440 ctns; Q'ty/40': 940 ctns Delivery Detail: 20-30 days after order confirm Specifications *Bluetooth version 2.1+EDR, Class II *Bluetooth Profiles: HSP, HFP, A2DP and AVRCP *Talk time&music playing time: up to 10hrs 1, Support line in music from other devices (MP3, mobile phone, CD, computer) by accessory line in cable; 2, Bulit in battery, can work more than 12 hours. 3, Equalizer function with different s
Specifications 1)light weight, Soft wearing design 2)bluetooth wireless waterproof headphones 3)Custom logo 4)Boom mic for clear Bluetooth headset features:1)beautiful, stylish design2)support all Bluetooth devices3)clear voice4)less interference, confidentiality, and then hang up, redial, reject a call, mute function, Last number redial 5)light weight, Soft wearing design6)cheap price with good quality7)Custom logo8)Boom mic for clear Descriptions: Enjoy stereo music from coputer and mobile Extremely good quality,superior clear voice Multimedia,stereo, foldable Headphone,NecKphone Handsfree,compatible with all Bluetooth Devices Such As PS3 & IPHONE High Capacity&Rechargeable Lion Battery Automatic cennecting function Energy saving function,200% longer talk tim Handsfree,answer/reject call and call the last coming NO. Voice Dialing,Re-dialing function Remote control music playback,pause,
Brand Name: OEM Model Number: RH001 Style: Headband Communication: Wireless Connectors: 3.5mm Use: Mobile Phone Function: Bluetooth,Microphone,line in and bluetooth wireless Place of Origin: GUA,guangdong China China (Mainland) material: ABS plastic color: white blue black usage: smart phone with bluetooth functon highlight: line in function 3.5mm ear jet working distance: 10M packing: factory standard box package type: headband ,stereo MOQ: 300 pcs Packaging & Delivery Packaging Detail: factory standard box packing Delivery Detail: 3 days after payment confirmed Specifications 1 .smart phone bluetooth headset 2.fast delivery good quality 3.factory directly wholesale 4.ceative ultra slim design wireless bluetooth headphone for smart phone with miscrphone hands free phone call High quality.Excellent Sound Quality.Well design and easy to use.Stable neckband means versatility for use conditions.Seamless switching between music and calls.Great sound with control.The headset supports
Specifications Mini Bluetooth Headphone SX-905 1) High Quality 2) Nice Design 3) Fast Shipment 4) OEM Mini Bluetooth Headphone SX-905 Unit Dimensions: 14.5/12.5/2.5cm weight: 130g Bluetooth Version: V1.2/V2.0 Charge Time: about 3hours Talk Time: 12hours Transmission Distance: Up yo 10M Package: 1xSX-905,1xcharger,1xUser manual
Brand Name: Perfectdigital Model Number: BLUEST-001 Style: Headband Communication: Wireless Connectors: 3.5mm Use: Mobile Phone Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) Color: 4 Colors Compatible brand: for iPhone/IPOD/IPAD Shipping terms: DHL, UPS, EMS, Fedex,TNT,HK Post OEM: YES Packaging & Delivery Packaging Detail: Retail package Delivery Detail: 1-3 workdays Specifications 1. Top quality headphone,Stereo sound, Foldable. 2. Remote control and Noise Reduction 3. For MP3, MP4, PC, Cell phone Hot selling Foldable Stereo Wireless Bluetooth Headphones Feature: 1.Stylish design.2.Perfect fit on ear to enjoy for music.3.Various color available4.Stereo earphone with excellent sound.5.Fashional design, stereo,various color for mp3,mp4 player6.Advantage price and high quality for mass purchase.7.Beautiful pakage for your retail.  
Brand Name: xk Model Number: xk-1065 Style: Ear Hook Communication: Wireless Function: Bluetooth Place of Origin: Guangdong China (Mainland) color: as photoes Packaging & Delivery Packaging Detail: retail package or as your request Delivery Detail: Depends on your quantity,Mostly,3~7 days after payment done Specifications Sport Bluetooth headset 1)Bluetooth V1.2 compliant for mobile phone or PC 2)Talk Time: Up to 4 hrs 3)Stand-by time:200 hrs Welcome to Our Fashion Shop Wireless bluetooth headset for Mobilephone, China Lowest Price Specifications:1.sport bluetooth headset 2.wireless 3.used for mobile phone,PC Item Wireless bluetooth headset for Mobilephone, China Lowest Price Quality ControlInspection by
Specifications bluetooth headset/headphone. with microphone. No wire,no software,no setup, it is easy and fast. High SNR Bluetooth audio. Bluetooth headset (headphone) 1:Bluetooth 2.1 wireless transmission protocol  
Brand Name: hotom Model Number: hotom007 Style: Headband Communication: Wireless Connectors: USB Use: Mobile Phone Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) Name: Bluetooth Stereo Headset Colour: White ,Red, black charging time: 2 hours horn diameter: 40 mm transmission range: more than 10 meters output power: Class II Packaging Details:: Stardard package Packaging & Delivery Packaging Detail: Stardard package Delivery Detail: 3-4days Specifications 1)Bluetooth4.0wireless headset. 2)Compatible with all Bluetooth A2DP enabled devicce 3)Working more than 24 hours in 30 mete fashion & colorful wireless floding bluetooth headphone bluetooth headset specifications 1) the battery 3.7 V / 500 mah lithium-ion polymer battery2 )calls (bluetooth) about 24 hours3 )music (bluetooth) about 24 hourS 4 )charging time: 2 hours5 )frequency response: 20-20 000 hz6 )horn:32 ohrn7) horn diameter:40 mm8 )bluetooth frequency: 2402 MHZ ~
Brand Name: HongKong HongFeng Model Number: 026 Style: Ear Hook Communication: Wireless Connectors: Other Use: Mobile Phone Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: gift box or OEM design Delivery Detail: 2-5 working days after payment Specifications 1.Wireless bluetooth headset 2.Transmission Distance: 10M 3.Noise reduction 4.Fashion&lightness Nature Sound Bluetooth Headset Features:1.The FM special random play function2.Storage and read function of flash disk3.Standby-time more than 100 hours4.Nice quanlity with acoustic fidelity5.Radiation Proof Anti-dropping Power Saving Specifications:1.Bluetooth Specifications: V2.1+EDR 2.Bluetooth Program:ISSC+Class23.Standby time: ≥ 100hours4.Talk time: 6hours5.Charging Time: 2-3 hour6.Standby Current: 0.7-1mA7.Batery Capacity: 48mA/h8.Wireless Frequency Range: 2.4G9.Transmission Power: 0 dbm11.Transmission
Specifications Hot sell Bluetooth Headset GZ-TB01 Bluetooth version: V2.1+EDR Chipset: CSR Work Frenquency:2.402GHz-2.480GHz ISM Band Hot sell Bluetooth Headset GZ-TB01 Stereo Bluetooth headset &n
Specifications Headset with MIC. Designed for left or right ear use with 360 degree rotating. Adjustable headband to fit most head size. 1,Type:Computer Bluetooth Headphone With Microphone 2,Frequency Table:2.4026GHz-2.480GHz3,Calling Time:8hrs4,Standby Time:160hrs5,Battery:180mAh6,Distance:within 10m7,Speaker Diameter:30mm8,Microphone:6*5mm-42*B+3dB9,You can use it to enjoy music from the computer,the sound quality is so great10,The human design makes you feel so comfortable even wearing it for such long time11,Its our patent deaign,so special for the market Sample ordering it is available now.
Specifications Hi-Fi Bluetooth Headphones,Bluetooth Headphones 1. CSR chip 2. connect 2 phones 1 time 3. play music 4. work with iphone Multifunction Hi-Fi Bluetooth Headphones,Bluetooth Headphones with Mp3
Brand Name: Bluedio Model Number: D12 Style: In-Ear Communication: Wireless Connectors: 3.5mm Use: Portable Media Player Function: Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) Color: As Request Certificate: CE Packaging & Delivery Packaging Detail: Carton & Color Box Delivery Detail: 7 Days Specifications 1. Crystal Clear / Innovative 2. Voice enhancement & sleek design 3. Bluetooth headset with LED indicator 4. Bluetoth V2.0 Bluedio Bluetooth Headset: Technical Parameter and Specification:Frequency Range:2.4GHz-2.48GHzTransmission Power:Class 2Operating Voltage:3.6VOperating Current:≤25 mAStandby Current:≤0.5 mATramission Distance:Max. 10M (Open Space)Headset Size: 27.9*13.6*21.2mm Music Time: About 1.5HCharging Time: 1H-2HTalking Time:About 1.5HStandby Time: About 60H
Specifications 2012 new design bluetooth headphone 1.Supports Headset & Handsfree 2.Bluetooth V3.0+EDR Class 2 3.Range: 10 meters 4.CE,Rohs 2012 new design bluetooth headphone Specification: Operating frequency range2.40GHz-2.48GHzBluetoothV3.0+EDR Class 2Headset & HandsfreeSupportRange of wireless connection10 metersBatteryBuilt-in chargeable 200mAH lithiumTalk time6 hoursStand-by time250 hours CertificationCE&ROHSMicrophone Yes Photo : Package:30pcs/ctncarton size:38.5*38*22cmbox size:17.2*4.0*12cmN.W.:5kg G.W.:6kg20'Container=781cartons=23430pcs
Specifications Luxury Design Wireless Bluetooth Stereo Headset Heart shaped Earphone Headphone for Universal Mobile phone S3 S2 lStylish clip-on headsetHM1500 is stylish clip-on design. Using a clip to attach the headset to your clothes, use a comfortable earpiece and microphone for the protection of privacy. lVibrationUse the vibrating alert for call notification in noisy environments or when your handset is on silent. lNoise reduction and echo cancellationEliminate unwanted background noise during calls with noise and echo cancellation DSP technology for crystal-clear conversation. lAdvanced multipoint-connectivity with two mobile phonesThe HM1500 boasts multipoint technology, allowing direct connectivity between HM1500 and two mobile phones. lAutomatic volume adjustmentWith automatic volume adjustment, HM150 will raise the volume of your conversation automatically when the background ambient noise level increase, and lower the volume when background noise decrea
Specifications 1.origin design 2.Hi-End sound quality 3.CE,FCC,RoHS passed 4.OEM highly welcome Blue headphone for MP3,IPAD,IPOD,PHONES1).Speaker Unit: 40mm2).Impedance: 32ohms3).Sensitivity: 110dB+/-3dB4).Frequency Response: 20Hz-20KHz5).Wire: 110cm6).Plug: Silicon7).Function: stereo super-bass, without volume control Notes:1).Keep away from fire.2).Keep away from sharp knife, fork, and edge tools. **Classic design & amazing listening experience**-incredible punchy-bass-pure and clear treble quality-inconceivable extensive sound stage image player metal earphone Metallic finish in-ear silicon plug earphone for MP3,IPAD,IPOD,PHONES
Brand Name: USBNOVEL Model Number: UST-BHF20 Style: Ear Hook Use: Mobile Phone Function: Bluetooth Place of Origin: Guangdong China (Mainland) Usage: Mobile Phone Specifications bluetooth hand free,bluetooth headset,bluetooth earphone bluetooth hand free,bluetooth headset,bluetooth earphone Description:- Technology: Bluetooth version V2.0 + EDR. Transmission Products: 10 m Support for Bluetooth headsets, hands-free, A2DP and AVRCP functions Size: 55mm x 24mm x 27mm. Weight of the product: about 20.1 grams Call Time: 6 hours standby time: 150 hours. Charging time: 3 hours Audio: stereo Standard configuration: packaging, manuals, chargers
Brand Name: OEM Model Number: BH-02 Style: In-Ear Communication: Wireless Connectors: USB Use: Portable Media Player Function: Bluetooth Place of Origin: Guangdong China (Mainland) Packaging & Delivery Packaging Detail: in blister card Delivery Detail: 1-3days Specifications Wireless bluetooth headphone 1.convenient for sports 2.Built in Microphone 3.Built-in lithium battery Wireless bluetooth headphone Features:100% Brand New and High QualityEasy to usePortable back-hang design, convenient for sportsAllow you answer the phone anytime and anywhere Specifications:• Color: Black,red,blue,green• Buttons: Play/ Pause, VOL +, VO -, Call/ Receive• Charging time: 1-2 hours• Play time:3-4 hours• Standby time: 250 hours• Weight: About 32g• USB Cable Length: About 62 cm/ 24.8''• Mini USB IN• Bluetooth version:V1.2/V2.1• Audio range:2.402GHZ~2.480GHZ ISM Band• Built-in lithium battery (charged via 2.0 USB)&bull
Brand Name: S-IP5G-0919 Model Number: OEM Style: In-Ear Communication: Wireless Connectors: 3.5mm Use: Mobile Phone Function: Bluetooth Place of Origin: Guangdong China (Mainland) advantage: small and easy to carry design: fashionable design Packaging & Delivery Packaging Detail: Plastic Bag packing. Delivery Detail: 1-3days Specifications Phone High Performance Professional Music Headphone with Mic Control for iPhone 5 / for iPhone 4 & 4S MP3 Phone High Performance Professional Music Headphone with Mic Control for iPhone 5 / for iPhone 4 & 4S MP3 Specification as below: 1) Ergonomic music seal design 2) Keeps your music in and all to yourself 3) Deep, rich sound 4) Compatibility: Any MP3 or standard music player with 3.5mm stereo plug, for iPhone 5 / iPhone 4 & 4S/3G/3GS / iPad / iPod , CD Player, and MP4 player Specifications: 1) Driver units: 40mm 2) Frequency response: 20-20KHz 3) Sensitivity: 104+/-3Db 4) Cord length: 1.2m(+/-0.3) 5) Jac
Specifications 1) Bluetooth Headset 2) V3.0+EDR 3) OEM Brand 4) Color Customized 5) Gift Box Model No.: F-0350 * Stereo Bluetooth Headphone * Work with mobile phones, new Nano, tablet pc, etc MOQ:3KModel:F-0350Color:CustomizedPower:USB Charging CableCertificate:CE/FCC/ROHS Market Share:North America (15%)Europe (20 %)South America (12%)Japan (10 %)Malaysia (22 %)Korea (10 %)Philippines (8 %)Other countries (3%) Feature:1) Head-band style 2) Hand Free Function3) Song Chosen Button, easy control4) Volume button5) 10 meters Bluetooth Range6) Rechargeable Battery built-in7) Colors Customized8) Eco-friendly and long time standby9) Hi-fi stereo quality10) OEM brand11) Large Market Scale12) Cheap and qualityPackage:Gift BoxPacking Details:100 PCS/CTN/51*46*30.5 CMSample:Available Specification: Bluetooth Version:V3.0+EDRSupported Profiles:HSP: Heads
Specifications 1. TF card audio headphone 2. Support date download from computer to TF card 3. foldable design 4.Chargeable lithium battery HEP-001 TF Card Audio Headphone 1. TF card audio headphone 2. Support date download from computer to TF card3. foldable design4.Chargeable lithium battery Specifications: HEP-001DiscriptionTF Card Audio Headphone - Back-neck, foldable design- Support TF card for MP3 formatSupportLaptop, PCImpedance32ΩCharging powerUSB 5.0VFrequency response40-17K HzCharge time≤1.5 hoursMax working current55mALithium batteryBuilt-in 300MAH c3.7V rechargeableS/N Rotio≥60dbCharging current500mATrack Isolation≥50dbCord plugUSB A maleColorMultiple colorsDimensions54x47x16 mm(Single Earplug) Packaging: PackingHEP-001Each Set in paper box CTN:40pcs SIZE(L W H)(CM)52.524.541.5CTN CBM:0.0534 CBM -10Kpcs:13.3448 N.W.6.50kgs G.W.7.00kgs Leading Time:Lead time:
Specifications wireless bluetooth headphone 1.Frequency : 2.4GHz ISM band 2.Built-in 360 degree Omni direction microphone 3.OEM colorful wireless bluetooth Headphone 1.Bluetooth stereo headset lets you listen to music or phone calls wirelessly2.High-quality speakers deliver crisp,rich sound3.Accept incoming calls or toggle between tracks with the touch of a button4.Lightweight,comfortable design for all-day listening5.Compatible with bluetooth enable devices,such as iphone,ipad,most computers,cellphone6.Frequency response:20-20,000 Hz7.Speaker impedance:32 ohm8.Transfer Distance:33 FT/10M9.Frequancy:2.4GHz10.Technology: Bluetooth V3.0-EDR11.Play/Talk ~10 Hrs12.Omni-directional high quality microphone13.Easily charge via USB port14.Sensitivity microphone Model NoHS02Ver.Bluetooth V3.0+EDRBluetooth ProfilesHSP,HFP,A2DPK,AVRCPEffective Range10MetersMusic Time10HoursTalk Time11HoursStandby TimeUp to 250HoursInputDC:5V/180mAhCharge Time3HourDimensions14.5*10*6cm 
Model Number: J9 Style: Ear Hook Communication: Wireless Use: Mobile Phone Function: Bluetooth,Noise Cancelling Place of Origin: China (Mainland) Color: Black, White Transmission Distance: 10M Standby time: 100 H Talking time: 4 H Charging time (maximum):: 2-3 H Packaging & Delivery Packaging Detail: Blister / Retail box. Delivery Detail: 3-15days after deposit Specifications -10 meters wireless range -Small and light bluetooth headset -Automatic cennecting function Features: With a Bluetooth Mono Headset J9 you can: 1) Enjoy high-quality sound streamed from your compatible phone 2) Stay comfortably in style with over the ear design and an easygoing neckband 3) Control the music player and manage your calls with the media keys 4) Save time with fast charging Technical Information: Chip: ISSC (A2DP)Supporting edition:2.0Frequency range:2.4GHz-2.48GHzTransmission power:class2Transmission distance:10MOperat
Brand Name: Hensallcd Model Number: for Bluedio E9 Style: In-Ear Communication: Wireless Connectors: USB Use: Portable Media Player Function: Bluetooth,Noise Cancelling,Microphone,Bluetooth,Noise Cancelling Place of Origin: Guangdong China (Mainland) Color: White/Black Quality: Original Status: In stock Name: Bluetooth Headset In box packing Packaging: anti-static bags with foam box Leads time: 1-3 days Shipping: DHL,EMS,UPS,HKost,ChinaPost Guarantee: 6 month fit for: Bluedio Bluetooth stereo Headset E9 Packaging & Delivery Packaging Detail: Packed with anti-static bag and foam box Delivery Detail: Within 1-3 days after confirm the payment Specifications High-End Wireless Stereo Bluetooth Headset Headphone 1. 100% test by QC 2. Competitive price The details For High-End Wireless Stereo Bluetooth Headset Headphone for Iphone for Samsung for HTC, Bluetooth V3.0+EDR, A2DP for Bluedio E9 as follows: Victorious return of upgrade version E9+, uses Bluetooth version 3.0 from
Specifications Bluetooth headset,foldable,with MIC,handsfree Support any audio players have Bluetooth system Bluetooth V2.1+EDR standards Features and Descriptions:Bluetooth headphone, foldableSupport any audio players which have Bluetooth systems, such as iPhone, iPad, Moblie phone, computer etc- Bluetooth V2.1+EDR standards:- Receiver range:10m;- Carrier frequency:2402MHz-2480MHz;- USB interference: High speed USB 2.0;- Battery: rechargeable lithium-ion battery;- Successive working time: about 12 hours;- Frequency response:20Hz—20KHz- S/N ratio:_82db;- Accessory: USB Charging Cable
Specifications 1.Bluetooth V3.0+EDR. 2.Support 16GB TF Play. 3.Lyrics Synchronous Display. 4.Built-in Battery Can Be Using 8 Hours. Bluetooth V3.0+EDR, High Data Rate Transmitting Support 16GB TF PlayHead Wearing, Exquisite Design, Avant-garde FashionOLED Display Screen, Playback Indicator As Plain As Print.Lyrics Synchronous Display, To Show Lyrics During Playing.To Adopt Hi-fi Stereo, To Enjoy Dynamic & Stereo MusicHeadphone Adopts Soft Plastic Material, Wearing Comfortable8 Sounds Available, To Cater Different Music Demand.With FM Radio Function, To Support Campus RadioBuilt-in Recording Capability, It Can Record External Audio.Built-in Battery Can Be Using 8 Hours. To Charge By USB Interface, Easy To Use.